Cast Iron Poly-V Pulley — CNC Turning

EN-GJL-200 grey iron · PK multi-rib groove form turning · customer-supplied casting

Cast iron Poly-V pulley CNC turning — EN-GJL-200 grey iron multi-rib pulley, finish turned

Finish-turned part: PK grooves on OD and finish-bored hub, with as-cast coated spokes

Specifications

Part Type Poly-V pulley for single-cylinder air compressor
Material EN-GJL-200 grey cast iron (equiv. FC200)
Size / Weight OD Ø186.5 mm / approx. 2.8 kg
Groove Profile PK multi-rib grooves (ISO 9982)
Process CNC turning
Blank Customer-supplied casting (cataphoresis coated)
Application Agricultural machinery, air compressors

Machining Highlights

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Multi-Rib Form Turning

PK grooves are form-turned with profile tooling; groove geometry and pitch are controlled per ISO 9982 to ensure belt seating and drive efficiency.

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Casting Datum Setup

Customer-supplied castings are located on as-cast datum faces, controlling concentricity between machined and cast surfaces to avoid wall-thickness deviation.

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Cast Iron Cutting Control

Tool-wear and chip management for interrupted cuts in grey iron, keeping dimensions stable across production batches.

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